Drainage receptacle



Feb. 11, 1936. Q N" MT HELL 2,030,708

' DRAINAGE RECEPTACLE Filed May 29, 1955 0 o o e o o o o o 0 o o 00 o /2' o o o -o o oo"o o o o o o o o Patented Feb. 11, 1936 UNITED STATES PATENT OFFICE 12 Claims.

This invention relates, as indicated, to drainage receptacles and particularly to those intended for the reception and drainage of refuse, especially garbage which accumulates at the ordinary kitchen sink. Heretofore, such receptacles have been provided with means for draining the water usually present in the refuse deposited in them, but have not been provided with any means for regulating this drainage or stopping it entirely when it was desired to move the receptacle from one place to another, such as in transporting it from the kitchen sink to an incinerator or to a larger receptacle. It may be used for numerous other purposes than for the reception of refuse. In modified form it is adaptable for use in the fruit and vegetable preserving business, in the chemical industry and in many other lines of manufacturing and merchandising.

The chief object of this invention is to provide means for automatically stopping the drainage of a receptacle when the receptacle is moved from one place to another. Another object is to provide means for regulating the rate of drainage of the receptacle. Another object is to provide a device of this character which is convenient to handle and one which can be adapted readily to the space which it is intended to occupy. A still further object is to provide a device of this character which can be readily disassembled for cleaning and for the replacement of parts. Another object is to provide a drainage receptacle which is adapted to be coated readily with a protective covering. An additional object is to provide a receptacle which may be manufactured rapidly and at low cost and with a small number of dies and other tools.

With these and other objects in view which will appear as the description proceeds, said invention then consists of the means hereinafter fully described with reference to the accompanying drawing and more particularly pointed out in theappended claims.

In said accompanying drawing Fig. 1 is a plan view of the improved drainage receptacle. Fig. 2

is a section substantially on line 2-2 of Fig. 1.

Fig. 3 is a fragmentary section similar to a part of Fig. 2, but showing a modified form of the supporting pad and valve.

Referring now to the constructional details as shown by the drawing; the basin l which is usually provided with an outwardly projecting flange or a bead at II, contains a floating false bottom l2 which may be made from a suitable screen or aperforated plate having holes I 3 through which liquid may drain. This false bottom is supported on the pads I attached thereto by screws or rivets l5 or the pads may be vulcanized to the false bottom when the pads are made of soft rubber which is the material usu* ally employed in their construction.

The pads 14 are provided with an enlarged end [6 which after the assembly of the pad to the false bottom is forced through the hole in the bottom of basin l0 provided for its reception. The lower part of pad I4 is made in a substane tially U form permitting it to compress or collapse to facilitate its assembly into the hole in the bottom of the basin l0 and to provide a passage for the liquid which has passed through holes l3 into space H below the false bottom. The diameter of the neck l8 of the pad is such as to have a free fit in the hole through which it passes. At the upper part of the pad is the flexible flange or valve member l9 which engages the edges of the hole in the bottom of the basin in sealing relationship when the pad is permitted to drop downward under the force of a load of material supported on the false bottom. This will then occupy the position as shown at in Fig. 2, thus preventing the flow of any liquid from the space I! through the passages 2| in the pads. The edges of the holes in the bottom of the basin l0 may be formed as shown at 22 to facilitate both assembly and the sealing action of the flange valve. In the absence of other means to engage a supporting surface as represented by the line 23, the shoulder 24 will engage the edges of the holes and the basin and false bottom will be supported with a substantial space between them as shown in the left hand portion of Fig. 2. When the basin is elevated, the weight of the false bottom itself enhanced by that of any draining material carried thereon will cause the valve flange l9 to seat as at 20 in' the right hand part of Fig. 2, thus preventing any flow from space I! through the spaces 2| in the pads I4.

When it is desired to regulate the flow of liquid from the space H, the adjustable supports 25 are provided to engage the supporting surface represented by the line 23. The head 26 of the screw 21 then rests on the surface 23 and pads- M are prevented from rising and fully opening the flange valves I9. By adjusting the position of supporting screws 21, which are threaded into bosses 28 and locked with nuts 29, theamount of opening of the valves is regulated and the flow therethrough is retarded. The bosses 28 are provided by tapping and cutting on sec-- tions of round bars and welding them to the bottom of the basin l0. 7

- In the usual construction three supporting pads and valves are employed as shown on the drawing in order that all valves seat evenly and simultaneously. The flexible structure of the valves provides for this condition. However, a large single valve centrally .located may be employed to advantage in some modifications of 'this receptacle. On the other hand, when a greater rate of drainage is desired a large number may be employed by exercising care in assembly so that all valves may belclosed simultaneously.

To provide for the sealing of the valveswhen irregularities occur in the spacing of the holes in the bottom of the basin I0, or in the locations of the supports for the valves in the false bottom l2, the construction shown in Fig. 3 is employed. In this the rod 29 having its lower end enlarged andknurled or otherwise prepared to be permanently secured in the support pad 30, has its upper end formed in the shape of a sphere. This spherical end 3| is held with suitable self aligning pressure between a spherical seat 32 in the false bottom 33 by-means of spherically formed washer 34, the latter being welded or riveted to the false bottom. The supporting pad 3!] has a spherically formed seating flange 35 adapted to engage the seat 36 in the bottom of the basin 3?.

, Slots 38 are provided in the pad as free passages erably of spring steel having its ends 43 secured to the bottom of the receptacle l0, usually by for liquid from the space 39 and as means for collapsing the enlarged portion inremoving the pad 30 from the opening in the bottom of the basin. The interior portion of the support pad is removed to increase the flexibility of the attachment of rod 29.

. In some cases the hinged support 40 is employed instead of the adjustable screws 26 which provides a fast and easy'method of removing the supports or in providing a support readily adjustable for two different heights. The hinged support 40 is constructed to rotate about the center ofthe shaft 4| which is carried by a bracket 42. This bracket is made of resilient material, prefwelding. The support 40 having fiat sides and. a slightly rounded corner at 44 deflects the bracket when turned on its axis and the tension of the bracket holds the flat side of the support. firmly against the bottom of the receptacle keep-- ing .the support in its upright position as shown full lines and holding it in the horizontal posi' .tionwhen turned as shown by the broken lines.

To prevent corrosion of the parts entering into the construction of this receptacle, their surfaces are treated to correspond with the conditions which they must resist. Among these are various metal plating coverings, enameling, rubber and other materials appliedelectrolytically, by spraying and by other processes.

I It will be evident from the foregoing that this receptacle can be inverted for the purpose of emptying it or for other purposes without the false'bottom becoming disengaged from the bottom of the basin and that water or air can be flushed through the passages in the supporting pads for cleaning'the' space between the false bottom and the bottom of' the basin. Further-- more, for the purpose of thoroughly cleaning all parts, the pads may be compressed from underneath the basin and forced through their respectiveopenings in the bottom of the basin and the false bottom. assembly removed in-its entirety;

The pads are of such form relative to the openings that the false bottom can be reassembled by pressing it down forcing the pads through the curved edged openings, the assembly being facilitated by lubricating the surfaces passing through the openings by means of water or oil.

The false bottom is formed to fit into the bottom of the basin with whatever clearance is needed for the thickness of the edges of the.

valves, and the contour of the false bottom is such as to enter the basin with suitable clearance to insure easy assembly and disassembly, but with a variety of other forms such as in hexagonal form t economize space when several such receptacles are to be placed adjacent to each other. Numerous other modifications maybe made in the various details, especially in regard to the.

form of the supporting pads l4 which, as hereinbefore explained, serve as valves to prevent leakage from space ll. These may be made of metal, such as stainless steel, and with spherical portions to engage spherical formed seats in the bottom of the receptacle. 'These valves and valve seats may be lapped or ground to prevent leaks, or they may have leather or rubber facings to provide the sealing required. When made of rubber as shown, or other flexible and. impervious material, they may be modified inform to serve as vacuum cups to hold the receptacle in place on the surface represented by the line 23..

Numerous other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanismherein disclosed, provided least in part, in the making the means stated by any of the following claims or the equivalent of such stated means be em ployed.

I therefore, particularly point out and distinctly claim as my invention? 1. In a drainage receptacle, the combination of a basin having an opening in its bottom, a plate adapted to fit into said basin in proximity with the bottom, and aplug attached to'said.

plate and passing loosely through the opening in the bottom of the basin.

2. In a drainage receptacle, the combination of a basin having an opening in its bottom, a-

plate adapted to fit into said basin in proximity with the bottom, a plug attached to said plate and passing loosely through the opening in the bottom of the basin, and a drain passage in said plug. 7 g

- 3. In a drainage receptacle, the combination of a basin having an opening in its bottom, a plate adapted to fit into said basin in proximity with its bottom, a plug attached to said plate and pass-' ing loosely through the opening in the bottom of the basin, and an enlarged portion on said plug'exteriorly of the basin;

4. In an article of the class described, the combination of a basinhavinga bottom wall and a side Wall, an opening in one of the walls, a member adapted to fit into said basin in proximity with theopening, a plug attached to saidm'ember and passing loosely through said opening, and means adapted to permit the removal of said plug from said opening.

5. In an article of the class described, the combination of a basin having a bottom wall and a side wall, an opening in one of said walls, a member adapted to fit into said basin in proximity with the opening, a plug attached to said member and passing through said opening, and a drainage passage in said plug.

6. In an article of the class described, the 'combination of a basin having a bottom wall and a side wall, an opening in one of said walls, a mem ber adapted to fit into said basin in proximity with the opening, a plug attached to said member and passing through said opening, a passage in said plug, and means provided in said plug for collapsing the same whereby the said plug may be removed from said opening.

7. In an article of the class described, the combination of a basin having a. bottom wall and a side wall, an opening in one of said walls, a member adapted to fit into said basin in proximity with the opening, a plug attached to said member and passing through said opening, and means provided in said plug whereby the same may be collapsed for removing the plug from the opening.

8. In an article of the class described, the com-- bination of a basin having a bottom wall and a side wall, an opening in one of said walls, a member adapted to fit into said basin, a valve attached to said member and adapted to close said opening, and means associated with said valve adapted to move said valve relative to said opening.

9. In an article of the class described, the combination of a basin having a bottom Wall and a side wall, an opening in one of said walls, a plug passing through said opening, said plug comprising a valve adapted to close said opening, means associated with said plug adapted to close said valve when said basin is moved relative to a supporting surface on which said basin may rest.

10. In a drainage receptacle, an inner member and an outer member, a valve attached to one of said members and adapted to close an opening in the other of said members, and means associated with said valve to permit said valve to close when one of said members is moved relative to its supporting means.

11. In a drainage receptacle, an inner member and an outer member, a valve attached to one of said members and adapted to close an opening, and a support attached to one of said members, the said support being adapted to limit the movement of said valve.

12. In a drainage receptacle, an inner member and an outer member, a valve attached to one of said members and adapted to close an opening, and an adjustable support attached to one of said members, said support being adapted to limit the movement of said valve.

COURTNEY N. MITCHELL. 

